#include <stdio.h>

void use_convert(){
	int sum=17,count =5;
	double mean;

	mean=(double)sum/count;
	printf("Value of mean : %f\n",mean);
}

void use_convert_1(){
	int sum,i=17;
	char c='c';/* ascii ֵΪ99*/
	float sum2;
	
	sum=i+c;
	sum2=i+c;
	printf("value of sum : %d \n",sum );
	printf("value of sum : %f \n",sum2);
}


int main(){
	use_convert();
	use_convert_1();

	return 0;
}